Implemented skeleton for node locking support
Enabled the locking support in the Repository
WORK IN PROGRESS: implemented lock, unlock and isLocked in the LockManager
Merged master into locking branch
Latest version of phpcr
Implemented LockManager::holdsLock
Small correction after DBU\'s comment https://github.com/jackalope/jackalope/commit/bd07f4d60dd2a1d4632da6dbd925bd41c67ff4b0#commitcomment-849001
Various corrections after discussing with David
Removed an incorrect feature from the Repository
Fixed LockManager lock and unlock with unsaved nodes
Implemented Lock::getSecondsRemaining
Moved the locking logic from the ObjectManager to the LockManager
Merge remote branch 'origin/master' into locking
Fixed Lock::getSecondsRemaining
Added TODO comment + error message when trying to create an open scoped lock
Added more information in comments for LockManager::lock
supporting lock timeout
Merge remote branch 'origin/master' into locking

Conflicts:
	lib/phpcr
	tests/phpcr-api
proactively use the upcoming working jackrabbit version
ensure that dcr:value is set